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It supports mathematical functions (including trigonometric functions).
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（0.575×3.24+0.7×15.6+0.3×0.08+0.65×7.39+0.5×0.63）/26.94=
244.16×(tan(45+14.355/2)*tan(45+14.355/2))+2×13.95×tan（45+14.355/2）=
244.16×(tan(45-14.355/2)*tan(45-14.355/2))-2×13.95×tan（45-14.355/2）=
244.16×(tan(45-14.355/2)*tan(45-14.355/2))-2×13.95×tan（45-14.355/2）=
（22×3.24+12.9×15.6+31×0.08+13.8×7.39+15.5×0.63）/26.94=
（8×3.24+14×15.6+7.6×0.08+16.2×7.39+17.9×0.63）/26.94=
10^5/10^-1*10^0
1/2×[1.0×π×（60×12）]
17.8×2.83+（17.8-9.8）×（3.24-2.83）+（17.8-9.8）×15.6+（19.1-9.8）×0.08+（17.9-9.8）×7.39+（17.9-9.8）×0.63=
1.35×1.0×3×14.3×10^3×0.49
√((2100×2100)/(700×700))
0.7×9.8×（38.73-8.48）=
0.633×396.73=
（0.575×7.55+0.68×0.43+0.7×16.47+0.65×8.28+0.39×0.17+0.5×6.03）/38.93=
396.73×(tan(45-15.055/2)*tan(45-15.055/2))-2×13.935×tan(45-15.055/2)=
396.73×(tan(45+15.055/2)*tan(45+15.055/2))+2×13.935×tan(45+15.055/2)=
（8×7.55+19×0.43+14×16.47+16.2×8.28+7.5×0.17+17.9×6.03）/38.93=
395.195×(tan(45+15.079/2)*tan(45+15.079/2))+2×14.352×tan(45+15.079/2)=
（0.575×3.93+0.68×2.35+0.7×17.85+0.65×7.49+0.3×0.69+0.39×1.09+0.5×5.25）/38.65=
395.195×(tan(45-15.079/2)*tan(45-15.079/2))-2×14.352×tan(45-15.079/2)=
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244.16×(tan(45+14.355/2)*tan(45+14.355/2))+2×13.95×tan（45+14.355/2）=
244.16×(tan(45-14.355/2)*tan(45-14.355/2))-2×13.95×tan（45-14.355/2）=
244.16×(tan(45-14.355/2)*tan(45-14.355/2))-2×13.95×tan（45-14.355/2）=
（22×3.24+12.9×15.6+31×0.08+13.8×7.39+15.5×0.63）/26.94=
（8×3.24+14×15.6+7.6×0.08+16.2×7.39+17.9×0.63）/26.94=
10^5/10^-1*10^0
1/2×[1.0×π×（60×12）]
17.8×2.83+（17.8-9.8）×（3.24-2.83）+（17.8-9.8）×15.6+（19.1-9.8）×0.08+（17.9-9.8）×7.39+（17.9-9.8）×0.63=
1.35×1.0×3×14.3×10^3×0.49
√((2100×2100)/(700×700))
0.7×9.8×（38.73-8.48）=
0.633×396.73=
（0.575×7.55+0.68×0.43+0.7×16.47+0.65×8.28+0.39×0.17+0.5×6.03）/38.93=
396.73×(tan(45-15.055/2)*tan(45-15.055/2))-2×13.935×tan(45-15.055/2)=
396.73×(tan(45+15.055/2)*tan(45+15.055/2))+2×13.935×tan(45+15.055/2)=
（8×7.55+19×0.43+14×16.47+16.2×8.28+7.5×0.17+17.9×6.03）/38.93=
395.195×(tan(45+15.079/2)*tan(45+15.079/2))+2×14.352×tan(45+15.079/2)=
（0.575×3.93+0.68×2.35+0.7×17.85+0.65×7.49+0.3×0.69+0.39×1.09+0.5×5.25）/38.65=
395.195×(tan(45-15.079/2)*tan(45-15.079/2))-2×14.352×tan(45-15.079/2)=
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